So if you start from the bottom, the first time you move the slider, you'll count '1.' Understand? Good. All the way down is 0, all the way up is 20. I'll give each R, G, and B slider name a number that corresponds to the number of ticks you move the slider. For anyone who wants to use any of the three four old colors from 3 and New Vegas for their HUD, I've created a list of slider settings.